Toilet paper winding apparatus



July 18, 1961 scusA 2,992,785

. TOILET PAPER WINDING APPARATUS Filed March 19, 1958 4 Sheets-Sheet 1LUIGIA SCUSA,Exccutrixdjhe ESiGfBdLINO SCUSIMDEG D.

'- INVENTOR @ZXM ATTORNEY July 18, 1961 scusA TOILET PAPER WINDINGAPPARATUS 4 Sheets-Shet 2 Filed March 19, 1958 LUIGIA SCUSA, Executrixof ihe Esiufe of LINO SCUSA, DEC D.

INVENTOR ATTORNEY L. SCUSA TOILET PAPER WINDING APPARATUS July 18, 19614 Sheets-Sheet 3 Filed March 19, 1958 FIGEq' FIG.4

LUIGIA SCUSA Execufrix 0f the Estate of LINO ScusA,DEc'o.

1 INVENTOR BY {(3 Z ATTORNEY July 18, 1961 L. scusA .TOILET PAPERWINDING APPARATUS Filed March 19, 1958 LUIGIA SGUSA, Executrix of theEstate of Lmo ScusA,.DEco.

INVENTOR ATTO RN EY United States Patent""() Filed Mar. 19, 1958, Ser.No. 722,617 13 Claims. (Cl. 242-64) This invention relates toimprovements in machines for forming a plurality of paper cores on longmandrels journaled in a reel having a plurality of mandrels and forwinding rolls of toilet tissue on the cores. More specifically, theinvention is an improvement on the auxiliary bearing support apparatusof Lino Scusa Patent 2,334,793.

The principal object of the invention is to provide a support for themandrels at the center thereof whereby the long mandrels may be rotatedat high speeds without whip or lateral vibration.

A more specific object is to provide a support for the mandrels in amachine having a plurality of stations at each of which a differentoperation is performed on a different mandrel of the reel including astation at which the support may be automatically released from themandrel for stripping the rolls from the mandrel.

Further objects are to provide a support which prevents vibration of themandrels in any lateral direction, to provide a support which isreleased from the mandrels at only one station, and to provide, in anautomatic machine, safety means to insure that the mandrels cannot bedamaged.

Other objects and advantages will more fully appear from the followingdescription taken in conjunction with the accompanying drawings, inwhich:

FIGURE 1 is a diagrammatic, longitudinal sectional view of a machineembodying the present invention;

FIGURE 2 is an enlarged fragmentary sectional view of the supportportion of the machine of FIGURE 1, on the line 22 of FIGURE 3;

FIGURE 3 is a sectional view of the support on the line 33 of FIGURE 2;

FIGURE 4 is a fragmentary sectional view of one of the support arms andadjacent engagement pawl, on the arbitrary line 44 of FIGURE 2;

FIGURE 5 is an enlarged side elevational view of the engagement safetyswitch of the machine of FIGURE 1 and adjacent parts;

FIGURE 6 is an enlarged sectional view of the disengagement latch ofsaid machine on the line 6-6 of FIGURE 7; a portion of. the latch beingshown in side elevation; v

FIGURE 7 is a fragmentary front elevational view of the latch of FIGURE6; and

FIGURE 8 is a sectional. view of the latch on the line 3-8 of FIGURE 6.

In the toilet .tissue roll winding machine illustrated in FIGURE 1 ofthe drawings, andmorefully described in companion application Serial No.722,533, filed March 1.9,. 1958, andnow abandoned, a reel 10 is shown,supported on a shaft 11 which is journaled in the sideplates of theframe12 across the machine. The reel has arms 13 supporting a plurality,here. five, of mandrels 14 shown positioned, respectively, at a corewinding station, Sta #1; a core m-oistening station, Sta #2; a tissuewinding station, Sta #3; a mandrel orienting station, Sta #4; and a rollstripping or ejection station, Sta #5.

A web of paper 15, for winding into cores, is fed from a large roll 16by feed rolls 17--17 over a table 18 and cut transversely by knives 1919into suitable lengths for the cores. A glue roll 20 and a drop roll 21also act as feed rolls to lead the paper 15 past slit knives 22-42,which slit the paper into strips of suitable width,

and on to the mandrel 14 at the first station. Suitable means 23 and 24are provided for lifting and releasing the drop roll 21 so that glue isapplied to the paper over the last portion only of each strip.

It will be understood that paper gripping means, not shown, are providedon the mandrels 14, and means, also. not shown, are provided forrotating the mandrel 14. Heating pads 25 and suitable means 26 and 27for swinging the pads against the cores at the first station and forreleasing them therefrom are provided.

At the second station a moistening roll 28 is provided. for moisteningthe cores at this station.

At the third station, a web of tissue 30 is led over a straightening rod31 from a large roll 32 by means of a feed roll 33, perforations acrossthe web being formed by the perforating roll 64. A movable table 35 ispiv-. otally supported in frame 12 at 36, and means, including apneumatic cylinder 37, are provided for lifting the table as the rollsare wound on the cores. Slit knives 38, on the table 35, slit the tissueinto strips which are wound at high speed on the cores. A countingmechanism, not shown, slows the tissue feed mechanism to a very slowrate when the desired number of sheets have been wound on the rolls Xand the reel 10 is then turned so that each mandrel moves to the nextstation.

A knife 40 is released at this time by control mechanism, not shown butincluding a latch 41, to drop and sever the web 30 as the rolls X moveto the fourth station. The severed web 30 falls on the moistened coresmoving from the second station and adheres thereto for further windingat the third station.

At the fourth station the rolls X are rotated for several turns, a pad43 securing the moistened ends of the tissue strips to the roll. At thisstation, also, the mandrel '14 is oriented, by means not shown, so thatthe gripping means of the mandrel are properly oriented in the ma-'chine for receiving the leading edge of the core paper strips at thefirst station.

At the next advance of the reel 10 the rolls X are brought to the fifthor ejection station and are there stripped from the mandrel 14.

As thus far described, the machine is the same as that of the aforesaidcompanion application.

It will be apparentthat the number of rolls which can be woundsimultaneously on each mandrel is limited only by the rigidity which canbe given to the mandrel. In the machine of this application a pair ofaxially aligned paper supply rolls 16 are used, and a pair of rolls 32,each pair being laterally spaced in the machine so that the novelauxiliary bearingsupport, now to be described, may give the mandrelsadditional bearing support at the center of each mandrel, and the lengthof the mandrels,

plate 48 on shaft 11 is secured to flange 45 by the five evenly spacedbolts 49, the plate being spaced from the flange by the spacers 50 andthe five angularly spaced spacing lugs 51 on the flange, as shown inFIGURES 2 and 3.

Five pairs of support arms 54-55 are piovtally supported on the camplate 48 by stud shafts 56 secured in the plate. One arm 54 of each pairis a radius contact arm having a curved portion 57 adapted to fit arounda, rounded or journal portion of the mandrel 14. The other arm 55 of theeach pair is a roller contact arm and has rollers 58 mounted on shafts59, as shown in FIGURES The flange has a 2 and 3, for engagement withthe same journal portion of the mandrel. 'It will be noted that theroller contact support arm 55 lies beneath the mandrel 14- at the thirdstation where the mandrel is rotated at its greatest speed. The arms 54and 55 are supported in the space between plate 48 and flange 45 and oneof each pair lies on either side of each spacing lug 51, the arms beingsuitably notched to close about the lug.

The inner ends of the arms 54 and 55 are provided with meshing spur gearteeth as shown so that each pair may open and close in unison abouttheir respective pivot shafts 56. A latch engaging pawl lever 60(FIGURES 2-and 4) is pivotally secured by a shouldered stud 61 to eachradius contact arm 54 which is the trailing arm of each pair as saidreel is turned. The pawl 60 comprises a latch contacting lever portionterminating in a hooked end 6011 and a fiat plate portion 60b overlyingthe arm 54 and which terminates in a locking hook 60c.

Five angularly and equally spaced, pulley-like, spring retainers 63 aresecured to the outer face of the cam plate 48 on the opposite side fromand midway between the pairs of arms 5455. The retainers are rotatablysupported on the plate by shouldered studs 64 and are retained on thestuds by suitable screws and washers. Similar spring retainers 65 onlock arms 54-55 are supported on arms 55 by the shouldered studs 66 andon arms 54 by the shouldered studs 61. The retainers 65 are radiallymore distant from shaft 11 than are the retainers 63.

Radially intermediate the retainers 63 and 65, the portion 60b of eachpawl 60 is provided with a spring retainer 68 carried on a stud 69, andretained by a suitable screw and washer. A continuous, or garter spring70 is wound about the above retainers, as shown in FIGURE 2, to urge thepairs of arms 54 and 55 together and to urge the locking hooks 60c ofthe pawls 60 to engage with the studs 66.

A latch support rod 72 is secured to frame 12 of the machine and extendsacross the machine in front of the auxiliary bearing support deviceabove described. A saddle 73, having an upstanding boss 74 (FIGURES 6and 8) is secured to rod 72 as by welding.

The latch body or frame 75, shown as constructed of plate members weldedtogether, is pivotally supported. on a pin 76 secured in the twosideplates of the body 75 and through a hole 77 'in boss 74, theinterior of the body being hollow as shown to receive the boss. The body75 is capable of a limited rocking movement as indicated in FIGURE 6from the position shown in full lines to that shown in broken lines. Thehole 77 is slotted as shown so that as the body 75 is rockedcounterclockwise as seen in FIGURE 6, the body may move rearward for ashort distance. The pin 76 is normally held in the forward end of theslot 77 by a spring 78 held in a hole in boss 74 by the plug 79. A setscrew 80 in the lower end of the body may be adjusted to limit therocking movement in one direction by its contact with the rod 75. Aspring 81 connects a pin 82, projecting from body 75, with a boss 83secured to the saddle 73 and resiliently holds the rear end of the latchfrom rocking downward A latch slide arm 85 is supported in a slide way86 in thebody 75 and nonnally projects rearward so that its hookedrearward end 85a is engageable by the hook 60a of the latch pawls of thesupport as reel 10 is turned as indicated in broken lines in FIGURE 6. Apin 87 is secured at the forward end of the slide 85 and projects upwardthrough an appropriate slot 88 in the body 75. The slide arm 85 isnormally spring pressed forwardly so that the pin 87 in the top of thebody 78 is at the forward end of the slot 88.

To conserve space, the compression spring 89 is contained in a dependingtube 90 secured to the body 75. A flexible steel ribbon 91 is secured tothe forward end of the slide 85 and is led down over a pulley 92. on ashaft 93 fixed in the. sidewalls of body 75. The other end 4 of theribbon 91 is secured to a piston 94 in the tube 90, the spring 89 beingcompressed between the piston 94 and an annular plug 95 screwed in thetop of the tube.

The slide 85 is normally prevented from moving forward by a trigger 96pivotally secured in the body by a pin 97 therethrough. The upper arm ofthe trigger 96 is engaged in a notch 85b in the underside of the slide85 and is biased therein by the spring 98 contained in a well in thetrigger 96. The lower arm of the trigger is engageable by a triggeractuating arm 99 secured to the rod 72 when the latch body is rotatedcounterclockwise as shown in FIGURE 6. r

The operation of the auxiliary bearing support and its associated latchwill now be apparent.

The operation of the garter spring 70, which in this instance is moreconveniently used than separate springs for each pair of arms, biasesthe arms 54- and 55 to closed position. The position of the springretainer 68 between retainers 63 and 65 assist in this closing action.Arms 54 and 55 move in unison about their pivots 56 because of theintermeshing spur gear teeth with which they are equipped. Moreover,each pair of arms is locked together by the hook 60c of the pawlengaging with the shouldered stud 66 on arm 55, and the pawl is biasedto its closed position by the spring 70. It will be noted also that theplate portion 60b of the pawl lies in the plane of the cam plate whichhas a camrning edge 48a which assists in the closing of the pawl 60.

Upon rotation of the reel between cycles of the tissue Winding machine,the pawl 68 of the pair of support arms moving from the fourth to thefifth station becomes engaged with the latch slide 85 as indicated inbroken lines in FIGURE 6. The hook 60a of the pawl engages hook 85a ofthe slide and pulls the slide 85 rearward until the trigger 96 engagesthe end of notch 85b in the slide as shown in full lines in FIGURE 6.Pawl 60 is now prevented from moving further rearward with the supportarms 54 and 55.

Spring 81 of the latch resists any rocking movement of the latch and issufliciently strong to resist the downward movement of motion of pawl 60and overcomes the resiliency of spring 70 as the pawl flange 60b isrotated about the pin 61, unlocking hook 600 from about pin 66.

As the arms 54 and 55 are moved to the fifth station, the engagement ofhooks 60a and 85a (FIGURE 2) rotate arm 54 about its pivot 56. Arm 55 isrotated about its pivot 56 by the action of the gear teeth on the arms.When reel 10 is in register, arm 55 has come to rest against the pin64and the arms 54 and 55 are spread wide, allowing the ejection of therolls X from the machine.

Upon turning'the reel 10 again at the end of the next cycle, engagementof the arm 55 with pin 64 prevents further opening of the arms and pawl60 is carried downward. The rear end of the latch is accordingly carrieddownward until the trigger 96 is engaged by the arm 99 and the slide 85isreleased. Until the trigger 96 releases the slide, the slide 85 andlatch body 75 move rearward as they are tilted, the pin 76 movingrearward in the slot 77. When the slide is released by the trigger 96,spring 78 restores the pin 76 to its forward position in slot 77 andslide 85 is carried further rearward and downward until pawl 60 leavesit at the position indicated 85a" in FIG- URE 6.

As soon as pawl 60 is released by the slide 85, spring 70 closes thearms 54 and 55 against the now empty mandrel and hook 600 again locksaround pin 66. Slide 85 is drawn forward again by the spring 89, and thelatch body is rotated back again to its normal position by the spring81. It will be noted that the normal position of the body 75 and hencethe slide 85 may be regulated by the set screw for best receiving thenext pawl 60.

A switch 100 mounted on a plate 101 attached to the latch body has. itsoperating button 102 engaged by the pin 87 only so long as pawl 60engages the slide as shown in full lines in FIGURE 6. This engagementmaintains the contacts of the switch apart or open. The switch 100 iswired to stop the machine when closed, as, for example, in series with aswitch which is closed during operations at the fifth station, and incircuit with an overload release clutch similar to that shown in LinoScusa Patent 2,712,372.

During rotation of the reel the slide 85 is in the position indicated at85a or 85a" and the pin 87 therefore is out of engagement with button102. During this time, therefore, or in the event the pawl 60 fails toproperly engage the slide 85, should the stripping at the fifth stationcommence, the machine is halted.

Another safety device is shown in FIGURE 5. A normally open switch 105is secured to a support plate 106 which is pivotally secured to theframe 12 of the machine at 1-07. A fiat spring 108 is secured to theswitch and bears against a rod 109 secured to frame 12 and is normallyout of contact with operating button =110 of the switch so as to leavethe switch open. The switch is wired to stop the machine when closed, asfor example, in a circuit with the overload release clutch mentionedabove.

A rigid operating arm 111 is secured to the support plate 106 so as tobe normally engaged by the pawl 60 when the arms 54 and 5 5 of thesupport are fully closed about the mandrel at the first station. Anotherresilient operating arm 112 is disposed in the path of the core paperand is attached to the switch 105.

It will now be seen that, if the pawl 60 is not in engagement with arm-111, the passing of the core paper will depress the flexible arm 1'12and tilt the switch 105. Should the support arms 54 and 55 not beclosed, pawl 60 would not be engaged with the arm Mind the machine wouldbe stopped. But if arm 111 and pawl 60 are in engagement, the passage ofthe core paper willfiex the arm 112 and the switch will remain open,being prevented from tilting by the rigid arm 111.

v While thereis herein described, and in the drawings shown,illustrative embodiments of the invention, it is to be understood thatthe invention is not limited thereto, but may comprehend otherconstructions, arrangements of parts, details and features withoutdeparting from the spirit of the invention. It is desired to be limited,therefore, only by the scope of the appended claims.

What is claimed is:

1. In a paper roll winding machine having a plurality of stations, and areel journaled and rotatable in said machine and having a centrallongitudinally disposed shaft and a plurality of longitudinally disposedmandrels for successive registration at said stations; the combinationof an auxiliary bearing support for said mandrels comprising armsupporting means secured on said shaft intermediate the ends of saidreel, a plurality of pairs of arms pivotally secured to said supportingmeans, each pair being adapted to swing apart and together in unisonand, when together, to provide a bearing support about one of saidmandrels, a lever pivotally carried on one of each of said pair of armsand projecting radially from said reel beyond said arms, locking meanson said lever adapted to engage a portion of the other arm of said pairfor locking the arms of said pairs together, spring means for swingingeach of said pairs of arms together and for biasing each of said leverstoward its locked position, and lever-engaging means secured in saidmachine outside of said reel at one of said stations for engaging andholding the end of said lever when the reel is turned, whereby one ofsaid pair of arms is swung apart at said one station for removal of therolls from the mandrel and said lever is released when the reel is againturned after removal of the rolls.

2. The auxiliary bearing support of claim 1 having cam means on said armsupporting means adapted to move said locking means to locked positionwhen said lever is released by said lever-engaging means and said pairof arms is swung together.

3. The auxiliary bearing support of claim 1 having meshing gear means oneach arm of each pair for swinging said pairs apart and together inunison.

4. The auxiliary bearing support of claim 1 having the lever carried onthe trailing arm of each of said pair of arms whereby engagement of saidlever with said lever-engaging means first unlocks said pair and thenswings said pair apart when the reel is turned.

5. In a paper roll winding machine having a reel rotatable on a shaftand carrying mandrels thereon for successive registration at a pluralityof stations including a roll ejection station and a core formingstation, the combination of an auxiliary bearing support for saidmandrels comprising arm support means carried on and rotatable with saidreel, a pair of arms for each mandrel pivotally secured to said supportmeans, each pair being adapted for swinging apart in unison from aclosed position adapted to provide a bearing support about one of saidmandrels to an open position adapted for removal of said rolls from themandrel, a lever pivotally carried on the trailing arm of each of saidpairs and projecting radially from said reel beyond said arms, each ofsaid levers being provided with locking means adapted to engage aprojecting portion of the leading arm of said pair to lock said pair inclosed position, spring means for biasing said arms toward closedposition and for biasing said lever toward locked position, and alever-engaging latch secured in said machine radially outward of saidreel at said ejection station for engaging and holding the projectingend of said lever, when the reel is turned, whereby each pair of arms isswung apart at said ejection station and said lever is released forreturn of the arms to closed and locked position when the reel is againturned after removal of the rolls.

6. The machine of claim 5 having safety means insuring the completeclosing of said arms about the mandrel at said core forming station,comprising a normally open switch pivotally supported at said coreforming station, resilient means normally holding said switch fromturning and adapted to close said switch when said switch is turned, afirst flexible operating arm secured to said switch and disposed in thepath of the core making paper and adapted to turn said switch, and asecond rigid operating arm secured to said switch and adapted to contactsaid projecting lever when said mandrel is in register at said coremaking station and thereby prevent the turning of said switch, saidswitch when closed being adapted to stop the machine.

7. In a paper winding machine having a reel, a plurality of mandrelslongitudinally disposed on and carried by said reel, and a shaftjournaled in said machine on which said reel is rotatable, thecombination of an auxiliary bearing support for said mandrels comprisingsupport means on said shaft, a plurality of pairs of arms pivotallysecured to said support means, each of said pairs being adapted toprovide a journal support for one of said mandrels, gear means on saidarms for swinging each of said pairs apart in unison thereby releasingsaid mandrel, locking means carried by one arm of each pair and adaptedto engage a portion of the other arm of the pair for locking said pairtogether, spring means for closing each of said pairs of arms about saidmandrel and for biasing said locking means toward locked position, alever projecting radially of the reel beyond said mandrel and connectedto said locking means, and latch means supported in said machine in thepath of said lever as said reel is turned, said lever being adapted tounlock said locking means and swing said pair of arms apart when engagedwith said latch while said reel is turned.

8. The bearing support of claim 7 wherein said latch comprises a levercontacting arm, a body in which said arm is supported, said body beingtiltable in said machine,

and spring means for resisting the tilting of said body when said arm isengagedby said lever.

9. In a paper winding machine having a reel, a plurality of mandrelscarried by said reel, a shaft journaled in said machine, said reel beingrotatable on said shaft, the combination of an auxiliary bearing supportfor said mandrels comprising an annular arm supporting member, means forsecuring said member to the shaft, a plurality of pairs of support armspivotal ly secured to said supporting member, each of said pairs beingadapted to provide a journal support for one of said mandrels, gearmeans on said arms for swinging each of said pairs apart in unison,thereby releasing said mandrel, locking means carried by one arm of eachpair and adapted to engage a portion of the other arm of the pair forlocking said pair together,

spring means for closing each of said pairs of arms about said mandreland for biasing said locking means toward locked position, a leverprojecting radially of the reel beyond said mandrel and connected tosaid locking means,

and 'latch means supported in said machine in the path of :2;

said lever as said reel rotates, said lever having a latch engaging hookand being adapted to unlock said locking means and swing said pair ofarms apart upon engagement with said latch.

10. In a paper roll winding machine of the class described having aplurality of stations, a reel intermittently rotatable on a shaft andcarrying mandrels longitudinally disposed thereon for successiveregistration at said stations, the combination of an auxiliary bearingsupport for said mandrels comprising an annular plate adapted to besecured to said shaft, 21 pair of support arms for each of said mandrelspivotally supported on the plate and adapted to swing together and apartin unison, bearing surfaces on said arms for journalling said mandreltherebetween, locking means pivotally secured to the trailing arm ofsaid pair and adapted to engage a portion of the other arm for lockingsaid pair together, spring means for closing said arms around saidmandrel and operative when said arms are closed for biasing said lockingmeans to locked position, a lever on said locking means for unlockingsaid pair and projecting radially from said reel, a stop for said armsat fully opened position, and lever contracting means independent ofsaid reel adapted to arrest the outward end of said lever duringrotation of said reel, whereby said a-rs are unlocked and opened fullyat, at least one, station for removal of the rolls at said station, andsaid lever contacting means being resiliently supported in said machine,whereby said lever is released upon further rotation of the reel.

11. The auxiliary bearing support of claim 10, wherein said levercontacting means comprises a lever contact slide, a body adapted toslidingly support said contact arm, said body being tiltably secured insaid machine, and spring means for resisting the tilting movement ofsaid body.

12. The auxiliary bearing support of claim 11, wherein said lever ishooked at its projecting end, said lever contact slide has a cooperatinghooked end for arresting said lever, spring means resisting the slidingof said contact slide toward said reel, latch means for preventing saidsliding, said body being resiliently movable toward said reel whentilted, and trigger means for releasing said latch when said body istilted.

13. The auxiliary bearing support of claim 12 having safety means forpreventing removal of the rolls when said support arms are not fullyopened, comprising a switch mounted on said body, and switch operatingmeans on said lever contact slide adapted to operate said switch onlywhen said slide contacts said lever and said mandrel support arms arefully open, said switch being normally adapted to stop the machineduring removal of the rolls at said station.

References Cited in the file of this patent UNITED STATES PATENTS2,385,691 Corbin et al. Sept. 25, 1945

